Elizabeth wood



(No Model.)

B. WOOD.

I GRATE ATTACHMENT. No. 309,429. Patented Dec. 16, 1884.

N. PEIERs. Pham-Limn m hor, Waihingtnn. D. c.

'To all whom it may concern.-

" of which the said doors may nrrnn h re-ties Parana 'GRATE ATTACH MENT.

SPECIFICATION forming part of Letters Patent No. 309,4:29, datedDecember 16, 1884:.

Application filed April 1854. (X0 model.)

Be it known that I, ELIZABIEITII Noon, of Evansville, in the county ofVanderburgh and State of Indiana, have invented certain new and usefulImprovements in Grate Attach ments; and I do hereby declare that thefollowing isa full, clear, and exact description thereof, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon, which form part of this specification.

The object of this invention is to apply at the throat of an openchimney-flue sliding doors, the flue being constructed to admit of suchdoors being moved laterally and horizontally free from the flue-space ofan open grate.

ll am aware thatit is not new to use sliding dampers or registers in thethroat of a chim-- ncy-tluc immediately above an open grate; but suchdevices necessarily involve frames, which are obstructions to the freeescape of the products of combustion at all times.

In the drawings hereto annexed, Figure 1 is a front'vicw of an opengrate eipiipped with my improvcnient, showing the sameprcvious to theornamental grate-front and mantel having been placed in position. Fig. 2is a vertical sectional view taken on the line a: a" in Fig. 1. Fig. isa plan view of the attachments, showing the samewith the slide-doorsopen; and Fig. a is a sectional view on the line j/ y in Fig.

The same letters refer to all the figures.

A in the drawings refers to the frame of the attachments, which iscomposed of two rectangular frames, 13 B, which are connected at theircorners and upper and lower edges by lugs G O, that leave sufiicientspace between the frames to accommodate a pair of sliding doors, D D,which are provided near their inner edges with recesses E, to receivethe point of a poker or other instrument by means be convenientlymanipulated. The inner or adjoining edges of the doors D are providedwith flanges F,. serving to prevent any possibility of displacement ofthe doors when they are opened to their full extent.

the same parts in G designates the grate, and H the chimney.

I11 practice the frame A is set in the chimney above the grate beforethe ornamental front of the latter and the mantel-shelf are placed inposition in such a may be opened laterally under the mantelshelf, and sothat when closed they shall con1- pletely close the chimney-opening.

The operation of this invention will be readily understood from theforegoing description, taken in connection with the drawings heretoannexed.

When during cold weather the grate is not in use, the doors 1) I) may beclosed, so as to prevent cold air from entering through the chimney.

At all seasons when the grate is not in use the doors D, when closed,will prevent soot and dirt from dropping upon the hearth.

\Vhen the to be-opened, and by opening them more or less they will serveto some extent to regulate the draft.

It will be seen by reference to Figs. 3 and i that the doors 1) D can bemoved inside of the sides of the chimney-jamb, and thus leave a freespace the entire width of and height of the flue-throat.

i am aware that it is not new in fire-places to employ, in combinationwith chimney-flues, a series of slots at the bottom thereof, providedwith removable dampers, and therefore I do not claim such a device. Bymy invention I am able to employ laterally-sliding dampers, and to leavea free, unobstructed space equal to the full horizontal area of the fluewhen said dampers are fully opened.

I am also aware that it is not new to employ laterally-sliding doors ina frame'located in the line, which is recessed to receive said frame.

I claim as my invention and desire to secure by Letters Patent 1. Thecombination, with an open fire-grate, of a chimney which is providedwith recesses, the sliding doorsD D, the frame B, constructed of twoparts united by lugs C, and the stop flanges F, all constructed andadapted to operate substantially as and for the purposes described.

2. The combination of the open frame 13,

constructed of two parts united by corner lugs,

manner that the doors D grate is to be used, the doors are I 'and thesliding doois provided with flanges In testimony that I claim theforegoing as 10 and with recesses E, substantially as and for my own Iaffixmy signature in presence of two the purposes set forth. witnesses.-

3. The combination, with the laterally-slid 7 ing doors having flangesand recesses as de- ELIZABETH XVOOD. scribed, of a frame composed ofparallel open plates united by means of lugs C O, and adapt- W'itnessesal ed for application to the throat of a chimney, i ALVAH J OHNSON,

as specified. JAMES B. RUoKER.

